Britain's Justin Rose double bogeyed the last hole to fall back into a share of the lead with Stephen Ames of Trinidad and Tobago and Ben Curtis after the second round of the Memorial Tournament yesterday.

Ben Curtis carded a bogey-free four-under-par 68 to tie Ernie Els for the lead, while Padraig Harrington has kept himself in touch with a one-under-71 after the opening round at The Memorial Tournament in Columbus.